DialogFragments and activities, passing info - android-activity

Question

I'm trying to show a DialogFragment asking the user his name, and I need to get back this string to my main activity.
I've created an custom dialog fragment following the android guide: http://developer.android.com/guide/topics/ui/dialogs.html#CustomLayout
In my code, in response to the user click on positive button, I am able to call a function in my main activity:
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
builder.setView(inflater.inflate(R.layout.textdialog, null)).setPositiveButton("OK", new DialogInterface.OnClickListener(){
#Override
public void onClick(DialogInterface dialog, int id) {
((mainActivity)getActivity()).doPositiveClick();
}
}).setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
((mainActivity)getActivity()).doNegativeClick();
}
});
return builder.create();
}
where R.layout.textdialog is:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<EditText
android:id="#+id/textdraw"
android:inputType="textEmailAddress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="4dp"
android:hint="introduce text" />
</LinearLayout>
My question is, how could I get the text written by the user in my dialog fragment and send it back to my main activity?
thanks!

Answer 1

Well, I solved myself (but not sure if it's the better way)
I've done some changes in my onCreateDialog.
Save the view in a variable:
View v= inflater.inflate(R.layout.textdialog, null);
Save the edittext in a variable:
final EditText ed=(EditText)v.findViewById(R.id.textdraw);
Send back the value in edittext variable when the user clicks the positive button:
getActivity()).doPositiveClick(ed.getText().toString());
Full code is here:
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
// Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
View v= inflater.inflate(R.layout.textdialog, null);
// reference to the edittext
final EditText ed= (EditText)v.findViewById(R.id.textdraw);
builder.setView(v).setPositiveButton("OK", new DialogInterface.OnClickListener(){
#Override
public void onClick(DialogInterface dialog, int id) {
((mainActivity)getActivity()).doPositiveClick(ed.getText().toString());
}
}).setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
((mainActivity)getActivity()).doNegativeClick();
}
});
return builder.create();
}
and the code in main activity:
public void doPositiveClick(String ed){
Toast.makeText(this, "Hi, "+ed, Toast.LENGTH_SHORT).show();
}